U-RING LF 300

PRODUCT DESCRIPTION

Merkel U-ring with asymmetrical profile, inner lip set back, grooved contact surface on the inside diameter as well as press fit at the outside diameter.

PRODUCT ADVANTAGES

Single-acting rod seal for standardised housings, amongst others, according to ISO 5597.

Very good static and dynamic tightness
Low friction, smooth movement even at low running speeds, dynamic deformation value
Use as an individual seal or secondary seal in sealing systems possible

Type	d	D	H	L	Profile	C	Fitting	Housing	Material	Article No.
URINGLF300	16	24	5,7	6,3	4	4		ISO	92 AU 21100	49016129
URINGLF300	19	27	5,7	6,3	4	4			92 AU 21100	49016138
URINGLF300	20	28	5,7	6,3	4	4		ISO	94 AU 925	521486
URINGLF300	22	30	5,7	6,3	4	4		ISO	94 AU 925	521689
URINGLF300	22	30	5,7	6,3	4	4	W		92 AU 21100	49024530
URINGLF300	22	32	7,3	8	5	4,5	W	ISO	92 AU 21100	49024552
URINGLF300	25	33	5,7	6,3	4	4	W	ISO	94 AU 925	521690
URINGLF300	25	35	7,3	8	5	4,5		ISO	94 AU 925	530049
URINGLF300	25	35	7,3	8	5	4,5		ISO	92 AU 21100	49024528
URINGLF300	26	36	7,3	8	5	4,5			94 AU 925	530050
URINGLF300	26	36	7,3	8	5	4,5	W		92 AU 21100	49024536
URINGLF300	28	36	5,7	6,3	4	4	W		94 AU 925	521691
URINGLF300	28	38	7,3	8	5	4,5		ISO	94 AU 925	522296
URINGLF300	28	38	7,3	8	5	4,5		ISO	92 AU 21100	49024467
URINGLF300	30	38	5,7	6,3	4	4	W		94 AU 925	521693
URINGLF300	30	40	7,3	8	5	4,5	W	ISO	92 AU 21100	49032530
URINGLF300	30	40	7,3	8	5	4,5	W		94 AU 925	530774
URINGLF300	32	40	5,7	6,3	4	4	W		94 AU 925	530051
URINGLF300	32	40	5,7	6,3	4	4	W		92 AU 21100	49024532
URINGLF300	32	42	7,3	8	5	4,5	W	ISO	94 AU 925	521694
URINGLF300	32	42	7,3	8	5	4,5	W	ISO	92 AU 21100	49024534
URINGLF300	35	43	5,7	6,3	4	4	W		94 AU 925	530052
URINGLF300	35	43	5,7	6,3	4	4	W		92 AU 21100	49024468
URINGLF300	35	45	7,3	8	5	4,5	W		94 AU 925	521706
URINGLF300	35	45	7,3	8	5	4,5	W		92 AU 21100	49024470
URINGLF300	36	46	7,3	8	5	4,5	W	ISO	94 AU 925	521695
URINGLF300	37	47	7,3	8	5	4,5	W		94 AU 925	522297
URINGLF300	38	48	7,3	8	5	4,5	W		92 AU 21100	49024506
URINGLF300	40	50	7,3	8	5	4,5	W	ISO	94 AU 925	521696
URINGLF300	40	50	7,3	8	5	4,5	W	ISO	92 AU 21100	49024505
URINGLF300	43	53	7,3	8	5	4,5	W		94 AU 925	530053
URINGLF300	45	55	7,3	8	5	4,5	W	ISO	92 AU 21100	49042413
URINGLF300	45	55	7,3	8	5	4,5	W	ISO	94 AU 925	521697
URINGLF300	46	56	7,3	8	5	4,5	W		94 AU 925	530054
URINGLF300	46	56	7,3	8	5	4,5	H		92 AU 21100	49024504
URINGLF300	48	58	7,3	8	5	4,5	W		94 AU 925	526668
URINGLF300	50	58	5,7	6,3	4	4	H		94 AU 925	522298
URINGLF300	50	60	7,3	8	5	4,5	H	ISO	94 AU 925	522299
URINGLF300	50	60	7,3	8	5	4,5	H	ISO	92 AU 21100	49016892
URINGLF300	52	62	7,3	8	5	4,5	H		92 AU 21100	49024503
URINGLF300	52	62	7,3	8	5	4,5	W		94 AU 925	530055
URINGLF300	55	65	7,3	8	5	4,5	H		94 AU 925	521698
URINGLF300	55	65	7,3	8	5	4,5	H		92 AU 21100	49022143
URINGLF300	56	71	11,4	12,5	7,5	5,5	W	ISO	94 AU 925	521699
URINGLF300	58	68	7,3	8	5	4,5	H		94 AU 925	522300
URINGLF300	58	68	7,3	8	5	4,5	H		92 AU 21100	49024465
URINGLF300	60	70	7,3	8	5	4,5	W		94 AU 925	524196
URINGLF300	60	70	7,3	8	5	4,5	H		92 AU 21100	49024502
URINGLF300	60	75	11,4	12,5	7,5	5,5	W		94 AU 925	521700
URINGLF300	63	73	7,3	8	5	4,5	H		92 AU 21100	49024501
URINGLF300	63	78	11,4	12,5	7,5	5,5	W	ISO	94 AU 925	521701
URINGLF300	65	75	7,3	8	5	4,5	W		94 AU 925	529093
URINGLF300	68	78	7,3	8	5	4,5	W		94 AU 925	530059
URINGLF300	68	78	7,3	8	5	4,5	H		92 AU 21100	49024493
URINGLF300	70	80	7,3	8	5	4,5	W		94 AU 925	530778
URINGLF300	70	80	7,3	8	5	4,5	H		92 AU 21100	49024492
URINGLF300	70	85	11,4	12,5	7,5	5,5	W	ISO	92 AU 21100	49044882
URINGLF300	70	85	11,4	12,5	7,5	5,5	W	ISO	94 AU 925	521702
URINGLF300	77	87	7,3	8	5	4,5	W		94 AU 925	530060
URINGLF300	77	87	7,3	8	5	4,5	H		92 AU 21100	49024459
URINGLF300	80	90	7,3	8	5	4,5	W		94 AU 925	530062
URINGLF300	80	95	11,4	12,5	7,5	5,5	H	ISO	94 AU 925	521703
URINGLF300	80	95	11,4	12,5	7,5	5,5	H	ISO	92 AU 21100	49024458
URINGLF300	85	100	11,4	12,5	7,5	5,5	W		94 AU 925	530064
URINGLF300	85	100	11,4	12,5	7,5	5,5	H		92 AU 21100	49024457
URINGLF300	90	105	11,4	12,5	7,5	5,5	H	ISO	94 AU 925	521705

There are several ways to seal a hydraulic cylinder, and using different types of seals can help prevent leaks and ensure proper operation of the cylinder. Here are a few ideas:

Use a piston seal to create a barrier between the moving piston and the cylinder wall. This can help prevent fluid leakage and reduce friction. Synonyms for piston seal include:

O-ring
Gasket
Packing

Use a rod seal to seal the gap between the rod and the cylinder head. This can help prevent fluid from escaping and can also help reduce friction. Synonyms for rod seal include:

Lip seal
U-cup seal
Scraper seal

Use a wiper to remove contaminants and debris from the rod as it moves in and out of the cylinder. This can help prevent damage to the seals and improve the overall performance of the cylinder. Synonyms for wiper include:

Scraper
Cleaner
Brush

Use a guide band to help position the rod and prevent it from tilting or misaligning as it moves within the cylinder. Synonyms for guide band include:

Guide ring
Guide bushing
Guide sleeve

It's important to use the appropriate seals and other components for your specific hydraulic cylinder to ensure proper sealing and operation.

There are several ways to seal a hydraulic cylinder:

1. Piston seal: This is a sealing element that prevents fluid from leaking past the piston as it moves within the cylinder. Some synonyms for this component include: O-ring, packing, seal ring.

2. Rod seal: This is a sealing element that prevents fluid from leaking past the rod as it extends and retracts within the cylinder. Some synonyms for this component include: lip seal, scraper seal, dynamic seal.

3. Wiper: This is a component that removes contaminants and debris from the rod as it extends and retracts within the cylinder. Some synonyms for this component include: dust seal, dirt scraper, rod protector.

4. Guide band: This is a component that helps guide the rod as it extends and retracts within the cylinder. Some synonyms for this component include: guide ring, guide bushing, rod guide.

It's important to properly seal a hydraulic cylinder to ensure the system operates efficiently and effectively. Using high-quality sealing elements and regularly maintaining and replacing them as needed can help prolong the life of the cylinder and prevent costly repairs.

Piston seal: O-ring, gasket, packing, sealing ring, sealing element Rod seal: Lip seal, radial seal, dynamic seal, reciprocating seal, shaft seal Wiper: Scraper, cleaner, wipeless seal, dust seal, dirt seal Guide band: Guide ring, guide bushing, guide element, guiding element, guiding ring

A slydring is a type of hydraulic seal specifically designed for use in high-pressure, high-temperature environments. It is made of a special material called PTFE (polytetrafluoroethylene) that is resistant to wear and abrasion, and it is used to seal the gap between a piston rod and a cylinder bore in a hydraulic cylinder.

A glydring is a type of hydraulic seal that is similar to a slydring in that it is made of PTFE and is used in high-pressure, high-temperature environments. However, a glydring is designed to seal the gap between two moving parts in a hydraulic system, such as between a pump and a motor or between two rotating shafts.

A slydring is a type of seal that is used to seal the gap between a moving and a stationary component in a hydraulic system. It is typically made of a flexible material such as rubber or polyurethane and is designed to provide a low-friction seal that prevents leakage of fluid or contaminants from the system.

A glydring is a type of seal that is similar to a slydring but is made of a material that is resistant to high temperatures and is specifically designed for use in high-temperature applications. It is often used to seal gaps between moving and stationary components in high-temperature hydraulic systems or in other high-temperature environments.

A single acting piston seal is a type of seal that is used in a hydraulic cylinder that only applies pressure in one direction. This type of seal is typically used in applications where the cylinder only needs to extend or retract, such as in a dump truck hoist or a car jack.

A double acting piston seal, on the other hand, is a type of seal that is used in a hydraulic cylinder that applies pressure in both directions. This type of seal is typically used in applications where the cylinder needs to extend and retract, such as in a hydraulic press or a hydraulic lift.

An example of a single acting piston seal might be a rubber o-ring that is used to seal the gap between the cylinder and the piston in a single acting hydraulic cylinder. An example of a double acting piston seal might be a pair of u-shaped seals that are used to seal the gap between the cylinder and the piston in a double acting hydraulic cylinder.

A single acting piston seal is a type of seal that is used to seal the gap between a moving and a stationary component in a hydraulic system where fluid pressure is applied to only one side of the piston. This type of seal is typically used in applications where the piston only needs to move in one direction. An example of a single acting piston seal is a seal used in a hydraulic jack or a hydraulic press.

A double acting piston seal is a type of seal that is used to seal the gap between a moving and a stationary component in a hydraulic system where fluid pressure is applied to both sides of the piston. This type of seal is typically used in applications where the piston needs to move in both directions. An example of a double acting piston seal is a seal used in a hydraulic cylinder on a bulldozer or a hydraulic cylinder on a forklift.

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